Chris Zylka, who played Flash Thompson in Sony’s “The Amazing Spider-Man,” is also being eyed for one of the main roles.

A monster mash-up movie in the vein of “Zombieland,” story follows a pair of teens (Davis and Braun) who form an unlikely alliance with vampires and zombies in order to take on an alien army.

Sony recently greenlit the movie, which is expected to shoot this summer.

Davis is currently at Sundance promoting her buzzed-about turn as Guy Pearce and Amy Ryan’s daughter in Drake Doremus’ drama “Breathe In.” She’s repped by UTA and Thruline Entertainment. She recently wrapped the romantic comedy “The F Word” with Daniel Radcliffe and is currently filming “Are We Officially Dating?”

WME-repped Braun, who starred in Kevin Smith’s “Red State,” and is coming off supporting turns in “The Perks of Being a Wallflower” and “The Watch,” will next be seen in CBS Films’ comedy “Get a Job.”

Fadem is a writer and creative consultant for “The Eric Andre Show” who has acted in numerous short films and will soon be seen in a pair of indie pics. He’s repped by Paradigm and Brillstein Entertainment Partners.

Zylka, who does not have an official offer yet but is being eyed for a role after participating in a reading of the script. He’s repped by WME and the Schiff Co.